pano will come and go and vary in intensity.
I had two black male littermates. The female line(dam) is a foundation line of mine so very familiar - and now a decade later we are generations away and still with reliable results . However , the sire of the litter was an eye-popping gorgeous black male , new to me . These two males had temperament to die for -- rock solid .
So good and so well conformed I held both back. At exactly the same day each dog would stand there like with one paw up, same leg - they looked like copies of each other. As days went by the legs would alternate - always identical in the littermate . Some days they were choosing to be more active , other times they were as flat as pancakes, both lying stretched out. Appetite would vary. This continued and continued , the dogs were nearly a year old . They would appear to be fine , go out and do some mild work with them, they would revert to pano. Because this could go on till they were two , meaning they were missing important training periods, and even when "clear" could have some trauma send them back to the benches , - not fair or right for a service dog that you need to count on - both were sold , as pets , with full information provided. The sire? I removed him from my breeding program as it was clear that this had a strong genetic component , that I did not want to introduce into my lines.
Pano is not something to worry about -- it is self limiting.
The vet can not make it go away .
Drugs that mask the pain will make the dog more mobile but he may injure himself or prolong pano .